首页|Influence of railway wheel tread damage on wheel-rail impact loads and the durability of wheelsets

Influence of railway wheel tread damage on wheel-rail impact loads and the durability of wheelsets

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Dynamic wheel-rail contact forces induced by a severe form of wheel tread damage have been measured by a wheel impact load detector during full-scale field tests at different vehicle speeds.Based on laser scanning,the measured three-dimensional damage geometry is employed in simulations of dynamic vehicle-track interaction to calibrate and verify a simulation model.The relation between the magnitude of the impact load and various operational parameters,such as vehicle speed,lateral position of wheel-rail contact,track stiffness and position of impact within a sleeper bay,is investigated.The calibrated model is later employed in simulations featuring other forms of tread damage;their effects on impact load and subsequent fatigue impact on bearings,wheel webs and subsurface initiated rolling contact fatigue of the wheel tread are assessed.The results quantify the effects of wheel tread defects and are valuable in a shift towards condition-based maintenance of running gear,and for general assessment of the severity of different types of railway wheel tread damage.

Wheel tread damageRolling contact fatigue clusterField measurementsDynamic vehicle-track interactionWheel-rail impact loadWheelset durability

Michele Maglio、Tore Vernersson、Jens C.O.Nielsen、Anders Ekberg、Elena Kabo

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CHARMEC,Department of Mechanical and Maritime Sciences,Chalmers University of Technology,SE-41296 Gothenburg,Sweden

activities within the Centre of Excellence CHARMEC (CHAlmers Railway MEChanics)European Union's Horizon 2020 research and innovation programme in the project In2Track3

101012456

2024

10.1007/s40534-023-00316-2

铁道工程科学(英文)
西南交通大学

铁道工程科学(英文)

影响因子：0.403
ISSN：2662-4745
年,卷(期)：2024.32(1)
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